Fix version numbers

[volcan01010]

Summary

As a BNG user, I want the version numbers to be consistent so that I know which version I am using.

Description

The version in setup.py (1.0.5) is different to the version in bng.py (1.0.3) is different to the released version (1.0.4).

The version number in bng.py should be set to 1.0.5 and a release made of v1.0.5.

Acceptance criteria

• Released version 1.0.5 has v1.0.5 in both the setup.py and bng.py